Atomizing core and cartridge

ABSTRACT

An atomizing core and a cartridge are provided. The atomizing core includes an atomizing surface and a seepage surface opposite to the atomizing surface. The seepage surface is recessed downward to form an e-liquid slot. A heating wire is disposed on the atomizing surface. The atomizing core is made of a porous ceramic material. The atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired. A part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot. The present disclosure effectively avoids a problem that the seepage of the e-liquid is insufficient in a case that the e-liquid is in a small amount.

TECHNICAL FIELD

The present disclosure relates to a technical field of electronic cigarettes, and in particular to an atomizing core and a cartridge.

BACKGROUND

Patent Application No. 201811033876.0 of the People's Republic of China discloses an atomizer and an electronic cigarette, including an atomizing core, a first plastic member assembling the atomizing core, a second plastic member, a housing that sleeves outside the first plastic member, and a cover body in snap-fit with the housing and covering outside the second plastic member. A first sealing portion is clamped between the atomizing core and the first plastic member, and a second sealing portion is clamped between a periphery of the first plastic member and the housing. An air hole is defined on the first plastic member. An air passage in communication with the air hole is disposed on the housing. The air hole and the air passage are connected with each other, and a third sealing member is clamped therebetween. The first sealing member, the second sealing member and the third sealing member are disposed to prevent an e-liquid from leaking from the housing.

The atomizing core includes an e-liquid suction surface in communication with a liquid storage chamber and an atomizing surface in communication with the air passage. An e-liquid slot is defined on the e-liquid suction surface. The e-liquid slot is recessed from the e-liquid suction surface. There is an insufficient contact surface between the e-liquid slot and the e-liquid. When an electronic cigarette is placed in an inverted state, the e-liquid is away from the e-liquid slot. When the electronic cigarette is inhaled immediately after being returned to its position, the e-liquid has not seeped on the atomizing surface enough, resulting in problems such as insufficient vapor or burning. In addition, the liquid storage chamber is in a sealed state, and a gradual decrease in the amount of the e-liquid may cause the liquid storage chamber in a negative pressure state, so that the e-liquid fails to seep through the atomizing core. Or under the influence of temperature, humidity, air pressure, etc., some e-liquid in the liquid storage chamber vaporizes, to produce an excessive high pressure in the liquid storage chamber, which may make the e-liquid completely seep through the atomizing core, causing leakage of the e-liquid.

SUMMARY

In view of this, the present disclosure provides an atomizing core and a cartridge that have more e-liquid adsorption surfaces and maintain an air pressure balance in a liquid storage chamber.

In order to solve above problems, the present disclosure provides the atomizing core, including an atomizing surface and a seepage surface opposite to the atomizing surface. The seepage surface is recessed downward to form an e-liquid slot. A heating wire is disposed on the atomizing surface. The atomizing core is made of a porous ceramic material. The atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired. A part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot.

In order to solve the above problems, the present disclosure further provides a cartridge, including a cartridge tube provided with a flue and a liquid storage chamber, a closure body installed in the cartridge tube and closing the liquid storage chamber, an atomizing core installed in the closure body, and a base fixed with the cartridge tube. The closure body includes a closure member and a sealing member formed or sleeved on the closure member. The closure member includes a closure end, an accommodation end extending downward from the closure end, an e-liquid passage running through the closure end and extending to the accommodation end, an air passage disposed separately from the e-liquid passage, and a notch defined in a middle of the accommodation end. The sealing member includes an atomizing core installation cavity formed in the notch. The atomizing core is placed in the atomizing core installation cavity for fixation. A conductive column connected to a power supply is disposed on the base. The conductive column abuts against a lower surface of the atomizing core, to provide support for the atomizing core. An upper portion of the base abuts against a lower portion of the accommodation end. The base is fixed with the cartridge tube. The atomizing core includes a seepage surface in communication with the liquid storage chamber through the e-liquid passage and an atomizing surface. The seepage surface is recessed downward to form an e-liquid slot. A heating wire is disposed on the atomizing surface. An atomizing chamber is disposed below the atomizing surface. The atomizing core is made of a porous ceramic material. The atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired. A part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot.

In order to solve the above problems, the present disclosure further provides a cartridge, including a cartridge tube provided with a flue and a liquid storage chamber, a closure body installed in the cartridge tube and closing the liquid storage chamber, an atomizing core installed in the closure body, and a base fixed with the cartridge tube. The closure body includes a closure member and a sealing member formed or sleeved on the closure member. The closure member includes a closure end, an accommodation end extending downward from the closure end, an e-liquid passage running through the closure end and extending to the accommodation end, and an air passage disposed separately from the e-liquid passage. The sealing member includes an atomizing core installation cavity formed in the accommodation end, and a sealing ring formed at peripheries of the closure end and the accommodation end. The atomizing core is placed in the atomizing core installation cavity for fixation. The atomizing core includes a seepage surface in communication with the liquid storage chamber through the e-liquid passage and an atomizing surface. An atomizing chamber is disposed below the atomizing surface. Balance air gaps are defined on transverse outer sides of the closure member, and air gaps that are in communication with the balance air gaps in an up-down direction are respectively defined on transverse outer sides of the sealing ring. The liquid storage chamber is in communication with the atomizing chamber or the air passage through the air gaps and the balance air grooves.

Compared with related art, embodiments of the present disclosure have the following beneficial effects: according to the atomizing core provided in the present disclosure, the top of the atomizing surface is recessed to form the e-liquid slot, and the middle of the e-liquid slot protrudes upward to form the protruding column. The first inclined surface and the second inclined surface are disposed around the e-liquid slot wall of the e-liquid slot and the peripheral wall of the protruding column respectively, which increases a contact area between the e-liquid and the seepage surface, thereby increasing the amount of adhered e-liquid. This avoids, when the e-liquid is in a small amount and not placed vertically, the problem of insufficient e-liquid during inhalation caused by that the e-liquid is in no contact with the seepage surface for a long time.

According to the cartridge provided in the present disclosure, at least one balance air groove is defined on the outside of the closure member, and the air gaps in communication with the at least one balance air groove are defined on the sealing member that covers outside the closure member. As such, the liquid storage chamber is in communication with the air passage or the outside world through the at least one balance air groove and the air gaps, which balances the pressure inside the liquid storage chamber. This maintains the air pressure balance in the liquid storage chamber, thereby preventing negative air pressure from resulting in that the e-liquid fails to seep into the atomizing core or preventing positive air pressure from causing leakage of the e-liquid.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a three-dimensional diagram of a cartridge according to one embodiment of the present disclosure.

FIG. 2 is a three-dimensional exploded diagram of the cartridge after removal of a cartridge tube according to one embodiment of the present disclosure.

FIG. 3 is a three-dimensional diagram of a closure member of the cartridge according to one embodiment of the present disclosure.

FIG. 4 is a three-dimensional diagram of a sealing member of the cartridge according to one embodiment of the present disclosure.

FIG. 5 is another three-dimensional diagram of the sealing member of the cartridge according to one embodiment of the present disclosure.

FIG. 6 is a three-dimensional combination diagram of a closure body of the cartridge from a bottom perspective according to one embodiment of the present disclosure.

FIG. 7 is a three-dimensional combination diagram of the closure body of the cartridge from a front perspective according to one embodiment of the present disclosure.

FIG. 8 is a three-dimensional combination diagram of the closure body of the cartridge from a right perspective according to one embodiment of the present disclosure.

FIG. 9 is a cross-sectional diagram taken along a dashed line C-C in FIG. 6 .

FIG. 10 is a cross-sectional diagram taken along a dashed line D-D in FIG. 6 .

FIG. 11 is a three-dimensional diagram of an atomizing core of the cartridge according to one embodiment of the present disclosure.

FIG. 12 is another three-dimensional diagram of the atomizing core of the cartridge according to one embodiment of the present disclosure.

FIG. 13 is a cross-sectional diagram taken along a dashed line E-E in FIG. 11 .

FIG. 14 is a three-dimensional diagram of a base of the cartridge according to one embodiment of the present disclosure.

FIG. 15 is a three-dimensional diagram of the cartridge tube of the cartridge according to one embodiment of the present disclosure.

FIG. 16 is a cross-sectional diagram taken along a dashed line F-F in FIG. 12 .

FIG. 17 is a three-dimensional diagram of a mouthpiece of the cartridge according to one embodiment of the present disclosure.

FIG. 18 is another three-dimensional diagram of the mouthpiece of the cartridge according to one embodiment of the present disclosure.

FIG. 19 is a three-dimensional diagram of the mouthpiece of the cartridge assembled with an adsorption member according to one embodiment of the present disclosure.

FIG. 20 is a cross-sectional diagram taken along a dashed line A-A in FIG. 1 .

FIG. 21 is a cross-sectional diagram taken along a dashed line B-B in FIG. 1 .

DETAILED DESCRIPTION OF THE EMBODIMENTS

In the present disclosure, as shown in FIG. 1 , the X direction is called a left-right direction (transverse direction), the Y direction is called a front-rear direction (longitudinal direction), and the Z direction is called an up-down direction (vertical direction).

Referring to FIG. 1 to FIG. 21 , a cartridge provided in the present disclosure includes a cartridge tube 10 provided with a flue 13 and a liquid storage chamber 12, a closure body installed in the cartridge tube 10 and closing the liquid storage chamber 12, an atomizing core 30 installed in the closure body, a base 50 fixed with the cartridge tube 10, and a mouthpiece 20 disposed at a top of the cartridge tube 10.

Particularly referring to FIG. 14 to FIG. 21 , the cartridge tube 10 includes a tube body 11, the liquid storage chamber 12 disposed inside the tube body 11, the flue 13 disposed in the tube body 11 and running from top to bottom, a mating portion 15 disposed at a top of the tube body 11, and first snap-fit portions 14 disposed on two sides of a bottom of the tube body 11. The flue 13 includes a flue tube 131 extending from the top of the tube body 11 into the liquid storage chamber 12, a smoke hole 133 defined in a middle of the flue tube 131, and an insertion portion 132 formed at a bottom of the flue tube 131. An outer diameter of the insertion portion 132 is smaller than an outer diameter of the flue tube 131. Positioning columns 151 are disposed on two sides of the mating portion 15, and a liquid suction cavity 152 is disposed at a top of the flue 13. The smoke hole 133 at the top of the flue 13 is of a trumpet-shaped structure. Preferably, the flue 13 is disposed in the middle of the liquid storage chamber 12. In a specific implementation, the flue 13 may be disposed at one side or two sides of the liquid storage chamber 12.

Particularly referring to FIG. 17 to FIG. 19 , the mouthpiece 20 includes a top portion 21, a placement portion 22 extending downward from the top portion 21, and a suction hole 23 running through the top portion 21 and the placement portion 22 and in communication with the smoke hole 133. Positioning holes 25 are defined on two sides of the placement portion 22 corresponding to the positioning columns 151. An adsorption space 24 is disposed around a periphery of the suction hole 23. An adsorption member 26 is disposed in the adsorption space 24. The adsorption member 26 is disposed around the periphery of the suction hole 23 and in communication with the smoke hole 133.

The adsorption member 26 is made of a polymer fiber material, and has strong water vapor adsorption capacity. During assembly, the placement portion 22 of the mouthpiece 20 is inserted into the liquid suction cavity 152 of the mating portion 15 disposed at the top end of the tube body 11, and the positioning columns 151 are inserted into the positioning holes 25 of the mouthpiece 20. When a user inhales through the mouthpiece 20, smoke moves upward through the flue 13, and most water vapor in the smoke is adsorbed by the adsorption member 26.

In a specific implementation, the adsorption member 26 may completely cover the smoke hole 133, so that the smoke is only inhaled by the user after it passes through the adsorption member 26. Accordingly, the adsorption member 26 is required to have strong permeability, so as to avoid being blocked. The mouthpiece is made of a food-grade thermoplastic elastomer (TPE) material, or other food-grade soft rubber material.

According to the cartridge provided in the present disclosure, the mating portion 15 is disposed at the top of the cartridge tube 10, the separate mouthpiece 20 is disposed on the mating portion 15, and the adsorption member 26 in communication with the flue 13 is disposed in the mouthpiece 20. The adsorption member 26 adsorbs most water vapor in the smoke, so as to prevent water vapor condensation in the flue 13 from causing seepage into a cigarette rod, thereby avoiding an influence on an electronic device of the cigarette rod.

Particularly referring to FIG. 11 to FIG. 13 , the atomizing core 30 provided in the present disclosure includes a seepage surface 31 in communication with the liquid storage chamber 12 and an atomizing surface 32. The seepage surface 31 includes an e-liquid slot 34 recessed downward. The e-liquid slot 34 includes a bottom surface 341, an e-liquid slot wall 342 disposed around a periphery of the e-liquid slot 34, and a first inclined surface 343 formed on a side of the e-liquid slot wall 342 close to the bottom surface 341. A middle of the bottom surface 341 of the e-liquid slot 34 protrudes upward to form a protruding column 35. Communication grooves (not marked) are formed between the protruding column 35 and the e-liquid slot wall 342. The e-liquid slot 34 is communicated through the communicating grooves in a 360-degree direction. A width of the communicating grooves on two transverse sides of the protruding column 35 is greater than a width of the communicating grooves on two longitudinal sides of the protruding column 35. A second inclined surface 351 is formed on a peripheral surface of the protruding column 35. An inclination of the second inclined surface 351 is greater than an inclination of the first inclined surface 343. An upper surface of the protruding column 35 is higher than a top surface of the e-liquid slot wall 342, which increases a surface area of the second inclined surface 351. The first inclined surface 343 and the second inclined surface 351 are designed to increase a contact area between the seepage surface 31 and the e-liquid in the liquid storage chamber 12, thereby increasing the amount of e-liquid adhered to the seepage surface 31. This avoids the problem of insufficient e-liquid in the atomizing core 30 caused by that the e-liquid is not in contact with the seepage surface 31 during inhalation, when the e-liquid in the liquid storage chamber 12 is insufficient.

A heating wire 33 is disposed at a bottom of the atomizing surface 32. The heating wire 33 may be embedded in the atomizing surface 32 or printed on the bottom of the atomizing surface 32. The atomizing core 30 is made of a porous ceramic material. The atomizing core 30 is formed with a plurality of capillary holes between the seepage surface 31 and the atomizing surface 32. The e-liquid in the liquid storage chamber 12 seeps into a side of the atomizing surface 32 through the capillary holes. In addition, the e-liquid will not seep out of a lower surface of the atomizing surface 32 under the state in which air pressures inside and outside the liquid storage chamber 12 are in balance due to the liquid tension.

According to the atomizing core 30 provided in the present disclosure, the top of the atomizing surface 31 is recessed to form the e-liquid slot 34, and the middle of the e-liquid slot 34 protrudes upward to form the protruding column 35. The first inclined surface 343 and the second inclined surface 351 are disposed around the e-liquid slot wall 342 of the e-liquid slot and the peripheral wall of the protruding column 35 respectively, which increases the contact area between the e-liquid and the seepage surface 31, thereby increasing the amount of adhered e-liquid. This avoids the problem of insufficient e-liquid during inhalation caused by that the e-liquid is in no contact with the seepage surface 31 for a long time, when the e-liquid is in a small amount and not placed vertically.

Particularly referring to FIG. 2 to FIG. 10 and FIG. 20 , the enclosure body includes a closure member 40 and a sealing member 60 integrally formed on the closure member 40. The closure member 40 includes a closure end 41, two accommodation ends 42 extending downward from two transverse sides of the closure end 41, an air passage 45 recessed downward from a middle of the closure end 41, e-liquid passages 43 running through the closure end 41 from two transverse sides and in communication with each other at a position below a bottom of the air passage 45, and a notch 44 defined at the accommodation ends 42. The notch 44 is defined in the longitudinal direction. In addition, a stop portion 441 is formed at two longitudinal sides of a top of the notch, and a step portion 442 is formed on an inner side above the stop portion 441. A support wall surface 443 is formed between the stop portion 441 and the step portion 442. The air passage 45 includes a connection air passage 453 running through the closure end 41 in the vertical direction, a longitudinal air passage 451 running through the closure end 41 in the longitudinal direction, and an outer-side air passage 452 extending downward from an outer edge of the longitudinal air passage 451 along an outer wall surface of the closure end 41. Recessed grooves 421 are defined at peripheries of bottoms of the accommodation ends 42. Balance air grooves 49 are defined on two transverse sides of the closure member 40. The balance air groove 49 includes a plurality of intercommunicated first air grooves 491 arranged in the vertical direction, and a pair of second air grooves 492 and a pair of third air grooves 493 that are respectively in communication with the first air grooves 491 on upper and lower sides. The first air grooves 491 include a plurality of strip grooves (unmarked) extending along a transverse outer side surface of the closure member 40 and vertical grooves that each communicates two adjacent strip grooves at a transverse end. The vertical grooves are disposed in a staggered manner along the longitudinal direction, so that two adjacent vertical grooves are disposed at two ends in the longitudinal direction. The second air grooves 492 and the third air grooves 493 are respectively in communication with an upper end and a lower end of two longitudinal sides of the first air grooves 491.

The sealing member 60 is integrally formed on the closure member 40. The sealing member 60 includes a first sealing portion 61 formed at peripheries of the accommodation ends 42, second sealing portions 62 extending from the first sealing portion 61 towards the closure end 41, and a third sealing portion 63 formed at a periphery of a top of the closure end 41 and connected to the second sealing portions 62 as a whole. The first sealing portion 61 includes a first sealing ring 612 integrally formed around the peripheries of the accommodation ends 42 and the notch 44, and an atomizing core installation cavity 611 formed at a bottom surface of the stop portion 441 of the notch 44 and inner side surfaces of the accommodation ends 42. An outer surface of the atomizing core installation cavity 611 corresponding to a sidewall where the outer-side air passage 452 is located is recessed inward to form a recessed channel 614 that is in communication with the outer-side air passage 452. A lower end portion of the recessed channel 614 runs through a sidewall of the atomizing core installation cavity 611 to form a through-hole 613. The through-hole 613, the recessed channel 614, the outer-side air passage 452, the longitudinal air passage 451 and the connection air passage 453 jointly constitute the air passage 45.

The second sealing portions 62 are disposed on two sides of each of the outer-side air passage 452, the recessed channel 614 and the through-hole 613. That is, the outer-side air passage 452, the recessed channel 614 and the through-hole 613 are located between the two second sealing portions 62.

The third sealing portion 63 includes a second sealing ring 631 integrally formed at a periphery of the closure end 41, a third sealing ring 633 integrally formed at an inner wall surface of the connection air passage 453, and e-liquid inlet holes 632 defined corresponding to the e-liquid passages 43.

The atomizing core 30 is assembled in the atomizing core installation cavity 611 of the sealing member 60. The atomizing core 30 is surrounded by a sidewall of the atomizing core installation cavity 611. The atomizing core 30 is located above the through-hole 613. An atomizing chamber 80 is formed below the atomizing core 30. The through-hole 613 is in communication with the atomizing chamber 80. Upper edges of two longitudinal sides of the atomizing core 30 are abutted by the step portion 442, so as to prevent the atomizing core 30 from moving upward. Two transverse sides of the atomizing core 30 abut against inner wall surfaces of the accommodation ends 42. The atomizing core installation cavity 611 of the sealing member 60 is at least partially formed on an inner side of the support wall surface 443. The two longitudinal sides of the atomizing core 30 are clamped between the support wall surface 443. The support wall surface 443 and the atomizing core 30 are spaced by an outer wall of the atomizing core installation cavity 611 for sealing.

First air gaps 639 in communication with the second air grooves 492 are respectively defined on two transverse sides of the third sealing portion 63 of the sealing member 60. In addition, a chamfering surface 638 is formed at a periphery of a top of the third sealing portion 63. The first air gaps 639 run from top to bottom on an outer side. Second air gaps 619 that communicate the third air grooves 493 to the air passage 45 or the through-hole 613 are defined at a bottom of the first sealing portion 61 of the sealing member 60. In this way, the liquid storage chamber 12 is in communication with the air passage 45 through the first air gaps 639, the air grooves 49 and the second air gaps 619, so as to maintain the air pressure in the liquid storage chamber 12 in balance with an outside air pressure.

Depths and widths of the first air gaps 639 and the second air gaps 619 vary with a viscosity of the e-liquid. The depths and the widths are adaptively adjusted for smooth airflow, with no leakage of the e-liquid from the first air gaps 639 and the second air gaps 619. Specifically, the depths of the first air gaps 639 and the second air gaps 619 are between 0.05 mm to 0.1 mm, and the widths of the first air gaps 639 and the second air gaps 619 are between 1 mm to 2 mm. The above depths and widths refer to values when the sealing member 60 is in an initial state where it has not been pressed into the cartridge tube 10. After the sealing member 60 and the closure member 40 are pressed into the cartridge tube 10, the sealing member 60 may be deformed by being squeezed since it is made of an elastic sealing material. Under the deformed state, the final depths and widths are less than the initial values. This ensures no leakage of the e-liquid, and at the same time maintains the air pressure balance in the liquid storage chamber 12.

According to the cartridge provided in the present disclosure, at least one balance air groove 49 is defined on the outer side of the closure member 40, and the air gaps 639 and 619 in communication with the at least one balance air groove 49 are defined on the sealing member 60 that covers outside the closure member 40. As such, the liquid storage chamber 12 is in communication with the air passage 45 or the outside world through the at least one balance air groove 49 and the air gaps 639 and 619, which balances the pressure inside the liquid storage chamber 12. This maintains the air pressure balance in the liquid storage chamber 12, thereby preventing negative air pressure from resulting in that the e-liquid fails to seep into the atomizing core 30 or preventing positive air pressure from causing leakage of the e-liquid.

Particularly referring FIG. 2 and FIG. 11 to FIG. 13 , the seepage surface 31 of the atomizing core 30 is exposed to the e-liquid passages 43 and in contact with the e-liquid in the e-liquid passages 43, and the atomizing surface 32 is located above the atomizing chamber 80.

The closure body is inserted from a bottom of the cartridge tube 10. After insertion, the insertion portion 133 at the free end of the flue 13 is inserted into the connection air passage 453 of the closure member 40, and clamps the third sealing ring 633 of the sealing member 60 together with an inner wall surface of the connection air passage 453 to achieve sealing. The first sealing ring 612 and the second sealing ring 631 tightly press against an inner wall surface of the tube body 11 of the cartridge tube 10, to achieve a double-sealing structure. The second sealing portions 62 tightly press against the inner wall surface of the tube body 11, so that the air passage 45 is sealed independently.

The e-liquid stored in liquid storage chamber 12 enters the e-liquid passages 43 of the closure member 40 through the e-liquid inlet holes 632 of the sealing member 60, so that the e-liquid is in full contact with the seepage surface 31 of the atomizing core 30 located below the e-liquid passages 43. As for the air passage 45 when smoke is inhaled through the flue 13, the smoke atomized by the atomizing chamber 80 sequentially passes through the through-hole 613, the recessed channel 614, the outer-side air passage 452, the longitudinal air passage 451 and the connection air passage 453, and finally enters into the flue 13, so as to be inhaled.

When the sealing member 60 is manufactured through injection molding, the first sealing portion 61 and the third sealing portion 63 are connected as a whole through the second sealing portion 62.

According to the closure body provided in the present disclosure, the sealing member 60 is integrally formed on the closure member 40, so there is no need to assemble the sealing rings separately, thereby realizing automatic assembly. The sealing member 60 has the first sealing ring 612 and the second sealing ring 631 that are respectively disposed at the closure end 41 and the accommodation ends 42 of the closure member 40. The second sealing ring 631, as the first sealing means, is in direct contact with the liquid storage chamber 12. In addition, the air passage 45 located between the first sealing ring 612 and the second sealing ring 631 is independently sealed by the second sealing portions 62, thus the air passage 45 will not be polluted even if there is e-liquid seeping out of the second sealing ring 631.

Continuing to refer to FIG. 2 , FIG. 14 and FIG. 20 , the base 50 includes a base body 51 and an extension portion 52 extending upward from the base body 51 and inserted into the cartridge tube 10. Second snap-fit portions 53 that are in snap-fit with the first snap-fit portions 14 disposed on two transverse sides of the tube body 11 of the cartridge tube 10 are disposed on two transverse ends of the extension portion 52. The first snap-fit portions 14 and the second snap-fit portions 53 may be snap-fit holes and snap-fit blocks, respectively. The base 50 is integrally formed with at least one pair of conductive columns 55 and air inlet holes 54 running through the base 50 and in communication with the atomizing chamber 80. This pair of conductive columns 55 electrically press against two ends of the heating wire 33, so as to transmit electric energy for heating the heating wire 33. The conductive columns 55 may be elastic contact members, which abut against the heating wire 33 with an elastic force, and also provide certain support for the atomizing core 30, so as to prevent the atomizing core 30 from moving down and falling off under the action of a strong external force.

Continuing to refer to FIG. 1 to FIG. 21 , an automatic assembly method for a cartridge according to the present disclosure is as follows:

S01: providing a cartridge tube 10, adding the cartridge tube 10 on an automated process line, placing the cartridge tube 10 in an inverted state.

S02: injecting an e-liquid into a liquid storage chamber 12 of the cartridge tube 10, where the injected e-liquid cannot exceed an insertion portion 133 of a flue 13.

S03: providing a closure body, automatically pressing the closure body into the cartridge tube 10, to close a periphery of the liquid storage chamber 12 and a portion between the liquid storage chamber 12 and the flue 13, forming an atomizing core installation cavity 611 at an end of the closure body away from the liquid storage chamber 12, and providing an e-liquid passage 43 and an air passage 45 that are independent from each other in the closure body.

In this step, the closure body includes a closure member 40 and a sealing member 60 integrally formed on the closure member 40. The structures of the closure member 40 and the sealing member 60 are described hereinbefore, and are not detailed herein.

S04: providing an atomizing core 30, automatically pressing the atomizing core 30 into the atomizing core installation cavity 611, and finally closing the e-liquid passage 43 in the closure body.

S05: providing a base 50 on which conductive columns 55 are formed, automatically pressing the base 50 into the bottom of the cartridge tube 10, so that the base 50 is fixed to the cartridge tube 10, abutting a top end of the base 50 against a bottom of the closure body, and the conductive columns 55 are in electrical contact with the atomizing core 30.

According to the closure body of the cartridge provided in the present disclosure, the closure member 40 and the sealing member 60 are integrally formed, which avoids the defect that separated sealing rings need to be manually assembled and thereby failing to realize automatic assembly. In addition, according to the cartridge provided in the present disclosure, the atomizing core 30 is directly fixed inside the atomizing core installation cavity 611 of the closure body, so there is no need for the base 50 and the closure body to clamp the atomizing core 30. The bottom of the atomizing core 30 is supported only by the conductive columns 55, and a clamping force applied to the atomizing core 30 is produced by an elastic cavity wall of the atomizing core installation cavity 611. Thus, it only needs to sequentially press the closure body, the atomizing core 30 and the base 50 into the cartridge tube 10 in an automatic manner, which simplifies the automatic assembly process. Besides, the present disclosure utilizes a minimum number of parts and components, thereby allowing for easier assembly. 

What is claimed is:
 1. An atomizing core, comprising: an atomizing surface; and a seepage surface opposite to the atomizing surface; wherein the seepage surface is recessed downward to form an e-liquid slot, a heating wire is disposed on the atomizing surface, the atomizing core is made of a porous ceramic material, and the atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired; and wherein a part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot.
 2. The atomizing core according to claim 1, wherein an e-liquid slot wall is disposed around a periphery of the e-liquid slot, a first inclined surface is formed on a side surface of the e-liquid slot wall facing the e-liquid slot, and the inclined surface disposed on the peripheral wall of the protruding column facing the e-liquid slot is a second inclined surface.
 3. The atomizing core according to claim 2, wherein a top surface of the protruding column is higher than a top surface of the e-liquid slot wall, an inclination of the second inclined surface is greater than an inclination of the first inclined surface, the e-liquid slot is communicated around a periphery of the second inclined surface of the protruding column, and a width of two longitudinal sides of the e-liquid slot is less than a width of two transverse sides of the e-liquid slot.
 4. A cartridge, comprising: a cartridge tube, provided with a flue and a liquid storage chamber; a closure body, installed in the cartridge tube and closing the liquid storage chamber; an atomizing core, installed in the closure body; and a base, fixed with the cartridge tube; wherein the closure body comprises: a closure member; and a sealing member, formed or sleeved on the closure member; wherein the closure member comprises: a closure end; an accommodation end, extending downward from the closure end; an e-liquid passage, running through the closure end and extending to the accommodation end; an air passage, disposed separately from the e-liquid passage; and a notch, defined in a middle of the accommodation end; the sealing member comprises: an atomizing core installation cavity, formed in the notch; wherein the atomizing core is placed in the atomizing core installation cavity for fixation, a conductive column connected to a power supply is disposed on the base, the conductive column abuts against a lower surface of the atomizing core to provide support for the atomizing core, an upper portion of the base abuts against a lower portion of the accommodation end, and the base is fixed with the cartridge tube; the atomizing core comprises: a seepage surface, in communication with the liquid storage chamber through the e-liquid passage; and an atomizing surface; wherein the seepage surface is recessed downward to form an e-liquid slot, a heating wire is disposed on the atomizing surface, an atomizing chamber is disposed below the atomizing core, the atomizing core is made of a porous ceramic material, the atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired, a part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot.
 5. The cartridge according to claim 4, wherein an e-liquid slot wall is disposed around a periphery of the e-liquid slot, a first inclined surface is formed on a side surface of the e-liquid slot wall facing the e-liquid slot, the inclined surface disposed on the peripheral wall of the protruding column facing the e-liquid slot is a second inclined surface, a top surface of the protruding column is higher than a top surface of the e-liquid slot wall, and an inclination of the second inclined surface is greater than an inclination of the first inclined surface.
 6. The cartridge according to claim 5, wherein the e-liquid slot is communicated around a periphery of the second inclined surface of the protruding column, and a width of two longitudinal sides of the e-liquid slot is less than a width of two transverse sides of the e-liquid slot.
 7. The cartridge according to claim 6, wherein the cartridge tube comprises a tube body; wherein first snap-fit portions are disposed on two transverse sides of a bottom of the tube body, and second snap-fit portions that are in snap-fit with the first snap-fit portions are disposed on two transverse sides of the base.
 8. The cartridge according to claim 7, wherein the air passage comprises: a connection air passage, running through a top of the closure end; a longitudinal air passage, running through the closure end and in communication with the connection air passage; and an outer-side air passage, extending from an outer edge of the longitudinal air passage to the accommodation end; the sealing member further comprises a third sealing portion formed at the closure end; wherein the third sealing portion comprises: a second sealing ring, formed at a periphery of the closure end; and a third sealing ring, formed at an inner side of the connection air passage; wherein the second sealing ring is clamped between an inner wall surface of the tube body and an outer side surface of the closure end, and the third sealing ring is clamped between an inner wall surface of the connection air passage and an outer side surface of a free end of the flue; the sealing member further comprises: a first sealing ring, formed at the accommodation end; and a second sealing portion, integrally formed with the first sealing ring and the second sealing ring and extending along an outer side surface of the closure member; a chamber wall on a longitudinal side of the atomizing core installation cavity corresponding to a lower part of the outer-side air passage is recessed to form a recessed channel; a top of the recessed channel is recessed to form a through-hole; wherein the atomizing chamber is in communication with the through-hole, the through-hole, the recessed channel, the outer-side air passage, the longitudinal air passage and the connection air passage constitute the air passage, and the second sealing portion independently seals the through-hole, the recessed channel, the outer-side air passage and the longitudinal air passage of the air passage, to prevent the air passage from being polluted when there is leakage of the e-liquid from the third sealing ring.
 9. The cartridge according to claim 8, wherein a stop portion is formed at a bottom of two longitudinal sides of the notch of the accommodation end, a step portion abutting against the e-liquid slot wall is formed above the stop portion, and a support wall surface is formed between the step portion and the stop portion; wherein the atomizing core installation cavity of the sealing member is at least partially formed on an inner side of the support wall surface and surrounds a periphery of the atomizing core.
 10. The cartridge according to claim 9, wherein balance air grooves and air gaps that communicate the liquid storage chamber with the atomizing chamber or the air passage are defined on two transverse sides of the closure body; wherein the balance air grooves are defined on a transverse outer side surface of the closure member, and the air gaps are defined on a transverse outer side surface of the sealing member.
 11. The cartridge according to claim 10, wherein the balance gas grooves comprise: a plurality of intercommunicated first gas grooves arranged in a vertical direction; and a pair of second gas grooves and a pair of third gas grooves that are respectively in communication with the first gas grooves on upper and lower sides; first air gaps in communication with the second gas grooves are respectively defined on two transverse sides of an upper end of the sealing member, and second air gaps in communication with the third gas grooves are respectively defined on two transverse sides of a lower end of the sealing member; wherein the first air gaps are in communication with the liquid storage chamber, and the second air gaps are in communication with the air passage or the atomizing chamber.
 12. The cartridge according to claim 11, wherein depths and widths of the first air gaps and the second air gaps vary with a viscosity of the e-liquid; the depths and the widths are adaptively adjusted for smooth airflow, so as to maintain an air pressure balance in the liquid storage chamber, with no leakage of the e-liquid from the first air gaps and the second air gaps; the depths of the first air gaps and the second air gaps are between 0.05 mm to 0.1 mm; the widths of the first air gaps and the second air gaps are between 1 mm to 2 mm; and the depths and the widths of the first air gaps and the second air gaps are smaller after the closure body is inserted into the cartridge tube.
 13. A cartridge, comprising: a cartridge tube provided with a flue and a liquid storage chamber; a closure body, installed in the cartridge tube and closing the liquid storage chamber; an atomizing core, installed in the closure body; and a base, fixed with the cartridge tube; wherein the closure body comprises: a closure member; and a sealing member, formed or sleeved on the closure member; wherein the closure member comprises: a closure end; an accommodation end, extending downward from the closure end; an e-liquid passage, running through the closure end and extending to the accommodation end; and an air passage, disposed separately from the e-liquid passage; the sealing member comprises: an atomizing core installation cavity, formed in the accommodation end; and a sealing ring, formed at peripheries of the closure end and the accommodation end; wherein the atomizing core is placed in the atomizing core installation cavity for fixation; the atomizing core comprises: a seepage surface, in communication with the liquid storage chamber through the e-liquid passage; and an atomizing surface; wherein an atomizing chamber is disposed below the atomizing surface; and wherein balance air gaps are defined on transverse outer sides of the closure member, air gaps that are in communication with the balance air gaps in an up-down direction are respectively defined on transverse outer sides of the sealing ring, and the liquid storage chamber is in communication with the atomizing chamber or the air passage through the air gaps and the balance air grooves.
 14. The cartridge according to claim 13, wherein the balance gas grooves comprise: a plurality of intercommunicated first gas grooves arranged in a vertical direction; and a pair of second gas grooves and a pair of third gas grooves that are respectively in communication with the first gas grooves on upper and lower sides; first air gaps in communication with the second gas grooves are respectively defined on two transverse sides of an upper end of the sealing ring, and second air gaps in communication with the third gas grooves are respectively defined on two transverse sides of a lower end of the sealing member; wherein the first air gaps are in communication with the liquid storage chamber, and the second air gaps are in communication with the air passage or the atomizing chamber.
 15. The cartridge according to claim 14, wherein depths and widths of the first air gaps and the second air gaps vary with a viscosity of the e-liquid, the depths and the widths are adaptively adjusted for smooth airflow, so as to maintain an air pressure balance in the liquid storage chamber, with no leakage of the e-liquid from the first air gaps and the second air gaps.
 16. The cartridge according to claim 15, wherein the depths of the first air gaps and the second air gaps are between 0.05 mm to 0.1 mm, the widths of the first air gaps and the second air gaps are between 1 mm to 2 mm, and the depths and the widths of the first air gaps and the second air gaps are smaller after the closure body is inserted into the cartridge tube.
 17. The cartridge according to claim 16, wherein the first air grooves comprise: a plurality of strip grooves, extending along a transverse outer side surface of the closure member; and vertical grooves that each communicates two adjacent strip grooves at a transverse end; wherein the vertical grooves are disposed in a staggered manner in a longitudinal direction, so that two adjacent vertical grooves are respectively located at two ends in the longitudinal direction.
 18. The cartridge according to claim 13, wherein the seepage surface of the atomizing core is recessed downward to form an e-liquid slot, a heating wire is disposed on the atomizing surface, the atomizing core is made of a porous ceramic material, the atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired, a part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot.
 19. The cartridge according to claim 18, wherein an e-liquid slot wall is disposed around a periphery of the e-liquid slot, a first inclined surface is formed on a side surface of the e-liquid slot wall facing the e-liquid slot, the inclined surface disposed on the peripheral wall of the protruding column facing the e-liquid slot is a second inclined surface, a top surface of the protruding column is higher than a top surface of the e-liquid slot wall, an inclination of the second inclined surface is greater than an inclination of the first inclined surface, the e-liquid slot is communicated around a periphery of the second inclined surface of the protruding column, and a width of two longitudinal sides of the e-liquid slot is less than a width of two transverse sides of the e-liquid slot.
 20. The cartridge according to claim 13, wherein a notch is defined in a middle of the accommodation end of the closure member; a conductive column connected to a power supply is disposed on the base, the conductive column abuts against a lower surface of the atomizing core to provide support for the atomizing core, an upper portion of the base abuts against a lower portion of the accommodation end, and the base is fixed with the cartridge tube; the cartridge tube comprises a tube body, wherein first snap-fit portions are disposed on two transverse sides of a bottom of the tube body; second snap-fit portions that are in snap-fit with the first snap-fit portions are disposed on two transverse sides of the base; the air passage comprises: a connection air passage, running through a top of the closure end; a longitudinal air passage, running through the closure end and in communication with the connection air passage; and an outer-side air passage, extending from an outer edge of the longitudinal air passage to the accommodation end; the sealing member further comprises a third sealing portion formed at the closure end; wherein the third sealing portion comprises: a second sealing ring, formed at a periphery of the closure end; and a third sealing ring, formed on an inner side of the connection air passage; wherein the second sealing ring is clamped between an inner wall surface of the tube body and an outer side surface of the closure end, and the third sealing ring is clamped between an inner wall surface of the connection air passage and an outer side surface of a free end of the flue; the sealing member further comprises: a first sealing ring, formed at the accommodation end; and a second sealing portion, integrally formed with the first sealing ring and the second sealing ring and extending along an outer side surface of the closure member; wherein a cavity wall on a longitudinal side of the atomizing core installation cavity corresponding to a lower part of the outer-side air passage is recessed to form a recessed channel; a through-hole is defined by running through a top of the recessed channel, the atomizing chamber is in communication with the through-hole; the through-hole, the recessed channel, the outer-side air passage, the longitudinal air passage and the connection air passage constitute the air passage; and the second sealing portion independently seals the through-hole, the recessed channel, the outer-side air passage and the longitudinal air passage of the air passage, to prevent the air passage from being polluted when there is leakage of the e-liquid from the third sealing ring. 